Windshield warmer



Feb. 24, 1931. I c H, BREWSTER 7 1,793,584

wmnsnmw WARMER Fil ed March 28, 1930 i \j/ r w [47/ ATTORNEYS.

Patented Feb. 24, 1931 WI ND'SEIZEELD "WARMER This invention relates toe-warming device for automobile Windshields and the likeyand the objeCt-ottheinvention,- is -to",provide-an improvedand simplified construction 'ot-suoh @5 deviceadapted to he mounted against the windshield forwarr'ning a'loealized area of the same "and '-;preventing the -fomnation of frost or ice upon the windshield in oold weather; I

In the usual devi'eeof-this' character wherein a confined air space is; provided against the windshieldheated by an e'leotrical heat ing unit, it sometimes occurs 'thatthe :temperature of the confined {heated air may rise suifieiently high to crack or I spoil; the 'windshield. The-new laminated windshield of glass and celluloid are particularly sensitive to any abnormalhe-ating effect. An impor- 'tant feature of the present deviee,-therefoie, is that it is arranged to pooke t warm air against-the windshield-but in;-sueh I a manner fas-to permit free circulationf=-airout ofthe bottom of the device and thus avoidthe psibility of the heated air becoming-hot enough to "crack the z-windshield, which 'is apt tooc- -cur if jthe-heated air -is too 'elo'sely confined.

further object Otthe-invehtion is; to provide adevice wherein-theVisiontherethrough is substantially unobstructed Joy the heating elements or frame mounting of thedei ioe.

Further objects and "advantages of the; inventionwi1l-become apparent -fr oin the following description takenin-eonneetion, with 'the'drawiugs whichshoWmpfiefMrecheIhbddiment eithe -invention, andixr-whieh Fig. l -is ajpartial-Eront view-61? an automofd y iee-mount'e d t-hereon Fig.2 is a vertical section along li rfe comprises "a small pane of; glass 4, held between tria ngular shaped endspieoes dand 6 whlch are preferably made o-f insul-ating material su'c'h'as*bakelite zindmaYbe united by a suitable grooVe'dborderfi ameTfor holding 5U the. glass A -therein. As-shown, the frame '7 lnaybe integral with side members "L shap'ed in section: and the bottom member Ui-shaped to =lld'th6iglElSS4331161 said fra-me is-fastened *tothe end pieces-5 ands -by*bolts8.- -This frame,ftogethe'r with itspane of glass 4, is adapted to rest against :the windshield (as shown'in- Fig. 2-) so that the'glass4 sets at an angle to the windshield l with its u'pper'edge ln-oonta'ct therewitha-nditslower edge spaced :3 therefrom, and together with the end member's 5 and 6 'form a pocket on the inside of s'aid windshield-1. The end members "5 and "6' serve as'theend closures for"- thepocket' thus formed. 7 I 1- A suitable electrical heating element such as resis't'ance wire 9 with its return-Wire 10"is -mounted'near the bottom open -'sidef'of said poeket, and said wire may be carried-through the end-members5 and -6, as shown. The *7 terlnuinalsi l and 12for" the wires =9, l0'a're mounted in the end member 6, as s'ho'w-n. It will lee-understood that suitable-connections inay'be-made from said-'te'l-min als 11 and 12 tea-sourceot'eleetrical current, such as the :7 5

hatteny OE-aear.

Theinean 's ior supporting the device-from the windshleld preferably consists of two --sp'ring m etal straps 13-and-14, which 'at their uppen ends are adj ustably -fastenedat 15 and *go p I to-the t'op' rail of t h'e WiIIdSlIiG/ld "ffiaine. bile windshield-audits irame s'h'ow-ing the and said device to press it against escape of air. It is not necessary, however, that this contact be equivalent to a hermetically sealed joint as a slight escape of air from the pocket at the edges will not destroy the effectiveness of the device. The device lnay be easily detached from the windshield by unhooking the studs 18 and 19 from the lower edge of straps 13 and 14 and swinging said straps upwardly against the top rail 3 of the windshield frame.

The operation of the device will be clearly apparent from the foregoing description. The heating elements 9 and 10 warm up the air near the bottom of the pocket, which natu-..

small glass pane mounted at an angle to said windshield and in approximate contact therewith at its upper edge, end closures at each side edge'of said glass pane forming therewith a-pocket open downwardly, electrical heating means in said pocket near the open bottom thereof, and means for supporting yieldingly against the windshield. V r

2. A warming device for automobile windshields and thelike comprising a relatively small glass pane set at an angle to said windshield and in approximateconta ct therewith at its upper edge, a frame for holding said small pane comprising end closures at each side edge of saidsmall pane and forming therewith a pocket open downwardly, electrical heating means carried by said frame adjacent the bottom openend of said, pocket, and means for supporting said frame with the end closures, in pressing contact with said windshield. V

3. A warming device for automobile windshields and the like comprising a relatively small glass pane set at an angle to said wind.- shield and in approximate contact therewith at its upper edge, a frame for holding said small pane comprising end closures at each side edge of said small pane and forming therewith a pocket open downwardly, electrical heating means carried by said frame adjacent the bottom open end of said pocket, and means for supporting said frame from the top of the windshield comprising spring tensioned metal strapshavinga detachable connection with said endc'losures and adaptedto press said end closures against said windshieldwith the upper-edge of the pane closelvadj acent the windshield. I

4. A warming device for automobile windshields and the like comprising a transparent member and end members forming together with the windshield a downwardly opening pocket of increasing depth from top to bottom in the direction of the windshield, electrical heating means positioned adjacent the open bottom of the pocket and means to hold the device in operative position with respect to the windshield. v

5. A warming device for automobile windshields and the like comprising a relatively small pane of transparent material, a frame for the pane including end members shaped to incline the pane downwardly and away from the windshield, said frame and pane forming with the windshield a downwardly opening pocket, electrical heating meansin said pocket near the open bottom thereof, and meansfor supporting the device in operative relation with the windshield.

6. A warming device for automobile windshields and the like comprising a relativel small pane of transparent material, a I] shaped frame for the pane including end members shaped to'position the pane so as to form with the windshield an open bottomed pocket, electrical heating means in said pocket adj acentthe open bottom thereof and means for holding the device in operative position with respect to the windshield.

7. A warming device for automobile windshields and-the like comprising a relativel small pane of transparent material, a shaped frame for the pane including end closing members shaped to incline the pane downwardly and outwardly from the windshield so as to space the lower edge of the pane from the windshield and permit the entrance of air to the space between the pane and the windshield, eleotrioheating means supported by the frame adjacent the lower edge of the pane and exposed to the windshield, and means to hold the device in operative position with respect to the windshield.

'8. A warming device for automobile'windshields and the like comprising a relatively small pane of transparent material, a U- shaped frame for the pane including end closing members shaped to incline the pane downwardly and outwardly from the windshield so as to space the lower edge of the pane from the windshield and permit the entrance of air the space between-the pane and the windshield, electric heating wire supported by the frame adjacent the lower edge ofthe pane and exposed to the windshield and the current of incoming air, and means to holdthe device in operative position with respect to thewindshield; i Y

9 A warming device for automobile windshields' and the like comprising a relatively small pane of transparent material, a U- shaped frame for the pane including triangularshaped'end closure membersto position the-pane downwardly and outwardly inclined signature.

CHARLES H. BREWSTER.

GERTIFECATE 0F GORREGTION.

iateht No. 1,793,584. Granted February 24, 1931, to

CHARLES H. BREWSTER.

it is hereby certified that error appears in the printed seeeiiieetion oi the t requiring correction as follows: Page 2, iine i5, aiter above numbered paten *pocket insert except for such ieahage as occurs at the top; and that the said Letters Patent should be read with this correction therein that the some may co-niorm to the record of the ease in the Patent Office.

Signed and sealed this 17th day oi March, A. D. 1931.

M. J Moore,

(Seal) Acting Commissioner of Patents. 

